Comment searching feature is helpful or not

How much helpful to search comment by user name? Can we get complete data of comments searching by username? 

Searching coemment feature is really helpful if we get complete data of our comments. But that time, i don't think so it's providing complete data of our comments. Maybe in future it will provide proper history of every comments. First time i have searched my own username ( ``User:``Hurian@bbs) but didn't find any  complete data. Only 7 to 8 comments appear in search list since I have joined this site. Did you used this feature? What's your thoughts about this feature? 

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